Swan Valley winemakers have vowed to boycott the coming Spring in the Valley festival, saying the two-day event has become too unruly and overcrowded.

Little River Winery and John Kosovich Wines said they would have nothing to do with the popular festival when it was staged on October 10 and 11 because it was a “debauch”. Other wineries said they would hold their own separate events to coincide with its running.

It comes as the Swan Valley Tourism Council, which organises the event, confirmed it would introduce a $5 entry fee for the first time in the festival’s history. The fee will apply to all people attending the event, with 40 per cent of proceeds to go to Ticketmaster and the rest to the council. With as many as 70,000 people expected to attend, the fee could net the council $200,000. Swan Valley Tourism Council executive officer Geraldine Riggir said patrons would need to show their tickets at all participating venues.

The cost of the ticket will not entitle patrons to entry into all venues, with many set to charge their own admission prices. Ms Riggir said the council’s $5 fee would help cover the cost of staging the event, while it would also allow organisers to better manage crowds. She defended the festival in the face of criticism from some Swan Valley businesses, arguing it was the best way of showcasing local products to a broad market.

“It’s not a terrible festival, it’s a fantastic festival,” she said. “It’s just a small element of it that is a problem. All the valley is trying to do is showcase the region and what it has to offer.”

Upper Reach Winery owner Laura Pearse said she would sell a limited number of tickets privately to ensure crowd numbers were kept under control. She backed the festival as a going concern, saying it was predominantly a “lovely day out”. But Little River Winery owner Jan de Tastes said she would close her winery in protest because she no longer felt the festival represented the best interests of producers in the valley.

“If it was a quality festival you could be proud of it but at the moment you’ve got the drunkenness taking over to such as degree that the whole thing is a debauch,” she said.

Mrs de Tastes threatened to sue the council and event sponsors if anything happened to her winery during the event.